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Llana [10]
3 years ago
12

Proteins around which the long, linear strands of DNA are wrapped; they serve to keep the DNA untangled and to enable an orderly

, tight, and efficient packing of the DNA within the cellis called_____________.
Biology
1 answer:
igor_vitrenko [27]3 years ago
3 0

Answer:

The correct answer is- Histone

Explanation:

DNA is approximately 2.2 m long thread which has to be adjusted in a microscopic nucleus so DNA must be in a supercoiled form to be present in the nucleus and this supercoiling of DNA is done on histone protein.

Histone protein is a positively charged protein that is made up of eight proteins so it is called histone octamer. Each histone has 2 copies of each protein that is H2A, H2B, H3, and H4.

DNA is negatively charged and histone protein is positively charged therefore DNA wraps around histone protein which causes the packaging of DNA. So the correct answer is histone protein.

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In photosynthesis, the energy from the sun eventually gets converted into chemical energy in the form of ATP and sugar that the
marta [7]

Answer:

Glucose enters the mitochondria for production of ATP.

Explanation:

Photosynthesis is the process through which solar energy is used to make glucose.

To generate chemical energy for cellular processes, glucose is broken down through cellular respiration in the mitochondria. This generates large amounts of ATP, which acts a source of energy to power reactions in the cell.

Excess glucose is stored as starch in plant cells

5 0
3 years ago
Which statement best illustrates a biotic or an abiotic factor that is often found in a city park?
ddd [48]

Answer:

Biotic: Plants

Abotic: Rocks

Explanation:

A biotic factor is something in an ecosystem or environment that is living. Some examples that could be found in a park are grass, flowers, trees, squirrels, pigeons, fish or people.

An abiotic factor is the exact opposite of a biotic factor: something in an ecosystem or environment that is not alive. Some examples that may be found in a city park include a park bench, a trash can, rocks, a playground, a pool, basketball court, temperature, and humidity.

5 0
3 years ago
Populations that experience exponential growth have unlimited sources. A population can not continue to grow
madam [21]

Answer:

Carrying capacity

Explanation:

Carrying capacity is the limit to which a population can grow with the resources (food, water, oxygen, habitat space, etc.) are available to support them. Once they reach the maximum population that the environment can support, they reach their carrying capacity.

6 0
2 years ago
A particular species of fish were split by the formation of the Isthmus of Panama a long time ago. The fish developed changes in
Aloiza [94]
<span>This is speciation. In this process, two distinct species are formed through the intervention of some means such as differing environments or locations. This is done typically as a way of staying evolutionarily competitive in the area in which the species resides. The new species would be the exemplar of that which is best suited to the new conditions.</span>
5 0
3 years ago
Read 2 more answers
What is the difference between primary dimensions of diversity and secondary dimensions of diversity?
Sveta_85 [38]

Answer:

A. Primary dimensions are less changeable, while secondary dimensions can change and are less visible.

Explanation:

The differences between primary and secondary dimension of diversity are as follows -

A) Primary Dimension

a) Primary dimension are those which are salient and hence they cannot change

b) Some common examples of primary dimensions are - ethnicity, sexual orientation, ethnicity,  gender, race, physical abilities/qualities, age etc.

A)  Secondary Dimension

a) Secondary dimension are not only limited to specific features and hence they can change with time.

b) Some common examples of secondary dimension are - geographic location, marital  status, parental status. work experiences, educational background, income,military experience, religious beliefs, etc.

Hence, option A is correct

6 0
3 years ago
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